Coverage hole detected for Ap

[ROB ADAMS]

I see the below messages in the trap log for coverage hole What do the separate history numbers signify and what are the intervals....0 0 0 5 17 19 8 ....0  0  0 .........?

Wed Oct 4 19:24:00 2017

Coverage hole pre alarm for client[1] xx.xxx.xxx.xx on 802.11a interface of AP a0:cf:5b:00:de:90 (BUILDING-AP01). Hist: 0 0 0 0 0 0 0 0 0 5 17 19 8 22 16 9 12 3 4 0 7 2 2 0 0 0 0 0 0 0 0

[Flavio Miranda]

Hello Rob,

  The histogram can be read from left to right with the number of received packets at a RSSI from -90 dBm to -60 dBm. 

 If you want to dig dive on this, I recommend the reading below:

https://dot11zen.blogspot.com.br/2017/08/coverage-hole-detection-and-mitigation.html

[ROB ADAMS]

Wow. This is GREAT info. Thank you.

[ROB ADAMS · Accepted solution]

What are the periods for the histogram? Seconds, minutes,?

[Cedric Marodon]

5 seconds for the histograms. Thanks Flavio for the link ^^